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Pediatric multidetector computed tomography using tube current modulation and a patient image gallery.
Acta Radiol. 2008 May; 49(4):475-83.AR

Abstract

BACKGROUND

Dose reduction is crucial in pediatric multidetector computed tomography (MDCT).

PURPOSE

To perform pediatric 16-slice MDCT using tube current modulations and to adjust prospectively the tube current using a patient image gallery (IG) providing simulated dose-reduced protocols; and to evaluate and compare the image quality of the IG and the clinical MDCT.

MATERIAL AND METHODS

30 examinations (thorax, n = 15; abdomen, n = 8; pelvis, n = 7) in 20 patients (nine male, age 8.05 +/- 7.33 years, weight 29.8 +/- 24.02 kg) were performed according to an IG on a 16-slice MDCT with additional use of online tube current modulation (CARE Dose). Three radiologists visually assessed image quality from the IG and actual 16-slice MDCT scans. For objective analysis, image noise was determined.

RESULTS

Statistical analysis showed moderate concordance in objective (K = 0.68-0.78) and subjective (K = 0.33-0.64) image assessment between the IG and clinical 16-slice MDCT scans. Depending on the weight group and clinical question, no or only minor dose reductions in the chest, but moderate to considerable reductions in the abdominal/pelvic 16-slice MDCT scans compared to previously used pediatric protocols were achieved. Extra dose reduction was achieved due to additional use of CARE Dose depending on age group and scan region (mean 8.6-23.9%).

CONCLUSION

The IG enabled us to prospectively reduce the tube current and adapt the required image quality to the clinical question. Additional dose reduction was achieved with application of CARE Dose; nevertheless, the images are comparable to the simulated images of the IG.

Authors+Show Affiliations

Department of Diagnostic Radiology, University Hospital RWTH Aachen, Pauwelsstrasse 30, D-52074 Aachen, Germany. honnef@rad.rwth-aachen.deNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18415795

Citation

Honnef, D, et al. "Pediatric Multidetector Computed Tomography Using Tube Current Modulation and a Patient Image Gallery." Acta Radiologica (Stockholm, Sweden : 1987), vol. 49, no. 4, 2008, pp. 475-83.
Honnef D, Mahnken AH, Haras G, et al. Pediatric multidetector computed tomography using tube current modulation and a patient image gallery. Acta Radiol. 2008;49(4):475-83.
Honnef, D., Mahnken, A. H., Haras, G., Wildberger, J. E., Staatz, G., Das, M., Barker, M., Stanzel, S., Günther, R. W., & Hohl, C. (2008). Pediatric multidetector computed tomography using tube current modulation and a patient image gallery. Acta Radiologica (Stockholm, Sweden : 1987), 49(4), 475-83. https://doi.org/10.1080/02841850801950095
Honnef D, et al. Pediatric Multidetector Computed Tomography Using Tube Current Modulation and a Patient Image Gallery. Acta Radiol. 2008;49(4):475-83. PubMed PMID: 18415795.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Pediatric multidetector computed tomography using tube current modulation and a patient image gallery. AU - Honnef,D, AU - Mahnken,A H, AU - Haras,G, AU - Wildberger,J E, AU - Staatz,G, AU - Das,M, AU - Barker,M, AU - Stanzel,S, AU - Günther,R W, AU - Hohl,C, PY - 2008/4/17/pubmed PY - 2008/5/7/medline PY - 2008/4/17/entrez SP - 475 EP - 83 JF - Acta radiologica (Stockholm, Sweden : 1987) JO - Acta Radiol VL - 49 IS - 4 N2 - BACKGROUND: Dose reduction is crucial in pediatric multidetector computed tomography (MDCT). PURPOSE: To perform pediatric 16-slice MDCT using tube current modulations and to adjust prospectively the tube current using a patient image gallery (IG) providing simulated dose-reduced protocols; and to evaluate and compare the image quality of the IG and the clinical MDCT. MATERIAL AND METHODS: 30 examinations (thorax, n = 15; abdomen, n = 8; pelvis, n = 7) in 20 patients (nine male, age 8.05 +/- 7.33 years, weight 29.8 +/- 24.02 kg) were performed according to an IG on a 16-slice MDCT with additional use of online tube current modulation (CARE Dose). Three radiologists visually assessed image quality from the IG and actual 16-slice MDCT scans. For objective analysis, image noise was determined. RESULTS: Statistical analysis showed moderate concordance in objective (K = 0.68-0.78) and subjective (K = 0.33-0.64) image assessment between the IG and clinical 16-slice MDCT scans. Depending on the weight group and clinical question, no or only minor dose reductions in the chest, but moderate to considerable reductions in the abdominal/pelvic 16-slice MDCT scans compared to previously used pediatric protocols were achieved. Extra dose reduction was achieved due to additional use of CARE Dose depending on age group and scan region (mean 8.6-23.9%). CONCLUSION: The IG enabled us to prospectively reduce the tube current and adapt the required image quality to the clinical question. Additional dose reduction was achieved with application of CARE Dose; nevertheless, the images are comparable to the simulated images of the IG. SN - 1600-0455 UR - https://www.unboundmedicine.com/medline/citation/18415795/Pediatric_multidetector_computed_tomography_using_tube_current_modulation_and_a_patient_image_gallery_ L2 - https://journals.sagepub.com/doi/10.1080/02841850801950095?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -